Home / 398,145.04-597,088.92-131,856.40

Finding the Fourth Proportional to 398,145.04, 597,088.92 and 131,856.40

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Solution

The fourth proportional to 398,145.04, 597,088.92 and 131,856.40 is: 197,742.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,145.04 : 597,088.92 = 131,856.40 : x
  2. Step 2: Convert to fraction form
    398,145.04/597,088.92 = 131,856.40/x
  3. Step 3: Cross multiply
    398,145.04x = 597,088.92 × 131,856.40
  4. Step 4: Simplify right side
    398,145.04x = 78,729,995,471.09
  5. Step 5: Solve for x
    x = 78,729,995,471.09/398,145.04
  6. Step 6: Final answer
    x = 197,742.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.